Revolving teeter.



C. E. MORRIS. nEvoLvlNG TEETER.

APPLICATION FILED MAR\20,1916.

Patanted Apr. 2, 1918,

2 SHEETS-SHEET l.

f NFFF STATE@ ATENT FFlQE.

CHARLES E. lIMORRIIS, OF LEAVENWORTH, KANSAS, ASSIGNOETO CHRLESW. PARKER,

^ 0F LEAVENWOBJTH,='KANSAS.

REVOLVING TEETER.

Specicatioii of LettersPatent.

`l.'f"arteiited Apr. 2, i918.

Applicationlled March 20, 1916. Sera11\To.-85`,345.

To all whom t may concern:

Be it known that Ci-n-nninsl. Mounts, a citizen of the United States, residing at Leavenworth, in the county of Leavenworth revolving teeters.

`The object of my: invention is to provide a toeter of novel construction, which is strong and durable, which may be economically manufactured, and in which the oscillations of the teeter member eiects its rotation `on a vertical axis.

A further object of my invention is to provide novel meansby which the persons carried by the teeter `membermay effect its oscillation without Ahaving to `strike the ground with their feet.

Still another object of my invention is to provide novel means for normally forcing the oscillatory teeter member to the horizontal position.

Another object of my invention is to pro vide novel meansfor adjustably balancing the oscillatory teeter member so as to oompensate for the diiference in weight of the persons carried thereby.

V@ther .novel features of my invention are hereinafter fully described and claimed.

LIn the accompanying drawings, which illustrate the preferred embodiment of my invention,

Figure 1 is a side elevation of my improved teetei.

Fig. Q is a top view of the game.

Fig. 3 is an enlarged vertical sectional view of a central portion of my improved teeter, taken on the line 3"?, of Fig.` fl.

Fig. 4E is an enlarged view, partly in side elevation and partly in vertical section of the central portion of my improved teeter.

Fig. 5 is a horizontal sectional view on the plane of the'line 5 5 of Fig. 3, some of the parts being Aomitted and Some broken away. Y

Fig. 6 is a cross section on the line 6-6 of Fig. 5.

Similar reference characters designate similar parts in the different views.

My improved teeter is provided with a support comprising preferably a stationary portion and a head revolublethereon on avertical axis. `The stationary portion comprises, preferably,a vstationary head 1 which is mounted upon theupper en'dof a standard 2, pref `erably tubular and having its lower end vertical spindle 5 on `which `is :revolubly mounted a revoluble head 6, which is preferablysupported upon aseries of `balls 7, which are disposed in a circular ball 'race provided therefor in the Vupper side of the `stationary'head1 andl concentric with the spindle ,5, as shown in F ig.` b3.

Opposite sides of the revoluble head 6 are provided with truiinions 8, on which are piv- 'otally mounted respectively `two bearings@ vwhich are respectively secured to two horizontal parallel angle bars 10 `which form the side members of a teeter member.

Secured respectively to the middle portions of the -bais 10 aretwo iA-shapedstand ards 11 on the upper ends of which are respectively mounted two truss rods 19., the outer ends of which are respectively secured to the bars 10 adjacent to the ends thereof.

lviouiited respectively on the outer ends 'of the bars 1() are two seats `13, which are adapted to be respectively occupied by the persons who are to operate the toeter.

For normally forcing the toeter member to the horizontal position, theieare provided two coil springs la, the inner ends of which are secured respectivelv to opposite ends of an eye bolt 15, Fig. -,which is secured to and extends through the revolving` head 6 adj acent to the upper end thereof.

The outer ends `of the springs 14 are respectively secured to oppositeends of a horizontal rectangular frame 16, the longitudinal sides of which are respectively secured to the standards 11 adjacent to the upper ends thereof. The longitudinal sides of the frame 16 `aredisposed parallel to the bars 10,

For adjustably balancing the loscillatory teeter member so as to compensate for the difference in weight of the personsoccupying the seats 13, there are preferably provided two counter-balancing weights 17 respectively longitudinally slidable on the bars 10 at opposite sides of the horizontal axis of the oscillatory teeter member. Opposite edges of each weight 17 are longitudinally grcoved to respectively receive the horizontal flanges of the bars 10, Fig. 6. Each weight 17 is provided with two screwthreaded holes respectively intersecting said.

grooves and having mounted therein two set screws 18, which are adapted to respectively bear against the adjacent bars 10 for retaining the weights 17 in the positions to whichthey may lbe adjusted. By loosening the screws 18, the weights 17 may be slid to their proper positions and then retained therein by tightening the set screws.

In order that the occupants of the seats 13 may oscillate the teeter member on the trunnions 8, there are provided two levers 19 which are respectively closely adjacent to the seats 13 and which have their lower ends respectively pivoted to two transverse bars 20, which are secured at their opposite ends to the two bars 10 adjacent to the seats 13, see Fig. Q.

Bespectively secured at their outer ends to the levers 19, are two rods 21, the inner ends of which are respectively secured to opposite ends of an eye bolt 22, llig. 4, which extends through and is secured to the revolving head 6.

By grasping` the upper ends of the levers 19 and alternately pulling and pushing thereupon, the occupants of the seats 13 may effect the oscillation of' the teeter member.

ln order that the teeter member when oscillated may be rotated on its vertical axis, the following described construction is preferably provided.

The upper side of the stationary head 1 is provided with an annular upwardly extending peripheral flange 23, llig. 3, on which are circumferentially slidably mounted two inverted U-shaped clamping members 211, the inner arms of which are adapted to lockingly clamp against the inner side of the annular flange 23. The outer arm of each clamping member 211 is provided with a slot Q5, Fig. L1, through which extends a cam lever 26, which is pivoted by means of a vertical pin 27 to the member QA- and the outer end of which is connected by means of an ordinary universal joint 2S, of the ball and socket type, to the lower end of an inclined rod or link 29, the upper end of which is connected by a universal joint 30 similar to the joint 28 to the adjacentl bar 10 at one side of the horizontal axis of the oscillatory teeter member.

rllhe joints 30 are located respectively at opposite sides of' the horizontal axis of the teeter member, as are the clamping mera bers 24C.

r1`he inner ends of the cam levers 26 are adapted to lockingly engage the outer side of the annular flange 23 when the outer ends of said cam levers are swung toward the ends of the teeter member which are nearest thereto. When thelevers are swung in the opposite direction, they will be released from the flange 23, thereby permitting a sliding movement of the clamping members 211 on the flange in a counterclockwise direction, `as viewed in lig.

lllhen the teeter member is oscillated, the upper ends of the links or rods 29`will be alternately moved upwardly and downwardly. Upon their upward movement, the rods 29 will swing the levers 2G respectively so as to release the levers from the flange 23. to slide the clamping members 2&1 fon wardlyk in a counter-clockwise direction, as viewed in Fig. 5. l y

When the upper ends of the rods or links 29 move downwardly, they will swing the levers 2G, in a direction such that the levers will lockingly engage the annular flange 28, thereby holding the clamping members 24 from sliding on the flange 23 in a rearward or clock-wise direction, as viewed in Fig. 5.

As the rods or links 29 move from the inclined position toward the horizontal, they will by bearing againstthe levers 26 effect a rotatory movement of the oscillatory teeter member around the axis thereof. Thus, as the teeter member oscillates, it will also revolve and its revolving movement will cause a step by step advancement on the flange 23 of the clamping members 24:.

l do notlimit my invention to the structure shown and described, as modifications, within the scope of the appended claim, may be made without departing from the spirit of my invention. f

ln a revolving teeter, a support having a vertical annular flange, a teeter member oscillatable on the support on a horizontal axis and rotatable on the support on a vertical axis, a clamping member slidable on the flange and adapted to be locked to one side of said flange, a lever pivoted to said.

Gomes of this patent may be obtained for ve cents each, by addressing the Commissioner of rate-nts,

Washingtom ID. C.

thereby permitting the rods or links 29V 

